*{
    /* 初始化 取消页面内外边距 */
    margin: 0;
    padding: 0;
}
body{
    /* 100%窗口高度 */
    height: 100vh;
    background-color: #000;
    /* 弹性布局 水平、垂直居中 */
    display: flex;
    justify-content: center;
    align-items: center;
}
section{
    width: 100%;
    height: 100px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
section .item{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
section .item .a{
    color: #fff;
    font-style: italic;
    font-weight: bold;
    font-size: 10vw;
    top: 0;
    opacity: 1;
    transition: top 0.5s,opacity 0.5s;
}
/* 切割文字 */
section .item .a:nth-child(1){
    position: absolute;
    clip-path: polygon(0% 0%,100% 0%,100% 51%,0% 51%);
}
section .item .a:nth-child(2){
    position: relative;
    clip-path: polygon(0% 50%,100% 50%,100% 100%,0% 100%);
}
/* 触发景深效果 */
section:hover .item{
    filter: blur(10px);
    transform: scale(0.8);
    transition: filter 0.5s,transform 0.5s;
}
/* 对应的取消景深效果 */
section .item:hover{
    filter: blur(0px);
    transform: scale(1);
    transition: filter 0.5s,transform 0.5s;
}
/* 上半部分上移并变淡 */
section .item:hover .a:nth-child(1){
    top: -40px;
    opacity: 0.5;
    transition: top 0.5s,opacity 0.5s;
}
/* 下半部分下移并变淡 */
section .item:hover .a:nth-child(2){
    top: 40px;
    opacity: 0.5;
    transition: top 0.5s,opacity 0.5s;
}
/* 裂开后显示的文字 */
section .item a{
    position: absolute;
    color: #fff;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.5s;
}
section .item a:hover{
    text-decoration: underline;
}
section .item:hover a{
    opacity: 1;
    transition: opacity 0.5s;
}